The volumetric efficiency of compressor with increase in compression ratio will Decrease Remain same May increase or decrease depending on clearance volume Increase TRUE ANSWER : ? YOUR ANSWER : ?
In multistage compressor, the isothermal compression is achieved by By insulating the cylinder Employing inter-cooler By constantly cooling the cylinder By running compressor at very slow speed TRUE ANSWER : ? YOUR ANSWER : ?
For minimum work required to compress and deliver a quantity of air by multistage compression All of the listed here The work-done in each stage should be same The compression ratio in each stage should be same The intercooling should be perfect TRUE ANSWER : ? YOUR ANSWER : ?
For perfect intercooling in a three stage compressor p₁ p₂ = p₃ p₄ p₁ p₃ = p₂ p₄ p₂/p₁ = p₃/p₂ = p₄/p₃ p₃/p₁ = p₄/p₂ TRUE ANSWER : ? YOUR ANSWER : ?
In jet propulsion power unit, the inlet duct of diverging shape is used in order to Collect more air Convert kinetic energy of air into pressure energy Beautify the shape Provide robust structure TRUE ANSWER : ? YOUR ANSWER : ?
In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of Atmospheric air Oxygen alone Vacuum Compressed air TRUE ANSWER : ? YOUR ANSWER : ?
For supplying intermittent small quantity of air at high pressure, following compressor is best suited Axial Screw Reciprocating Centrifugal TRUE ANSWER : ? YOUR ANSWER : ?
In a jet propulsion unit, the products of combustion after passing through the gas turbine are discharged into Discharge nozzle Vacuum Back to the compressor Atmosphere TRUE ANSWER : ? YOUR ANSWER : ?
A compressor at high altitudes will require ___ power. Less None of the listed here More Same TRUE ANSWER : ? YOUR ANSWER : ?
Gas turbine as compared to steam turbine Requires less space for installation Has less efficiency Has compressor and combustion chamber All of these TRUE ANSWER : ? YOUR ANSWER : ?